Question

On a graph with y-values ranging from 112,020 to 982,192, what is a reasonable scale to use on a y-axis with 10 tick marks?

Answer 1

The best way to do this is to subtract the lowest number from the greatest number and divide it by the number of tick marks before rounding off. So,
981,192 - 112,020 = 869,172

869,172/10 = 86,917.20

The value can be rounded off to 100,000. The scale of each tick mark will be 100,000.